Technical Papers & Journals

INTEGRATION OF LASER TRACKER SYSTEM IN BIW MEASUREMENT: A CASE STUDY IN AUTOMOTIVE INDUSTRY

Armağan Altınışık, Emre Bolova

Product and process quality assurance are challenging task due to increasingly narrowing product specifications. Coordinate measurement is one of the key technologies used in the area of dimensional control to inspect and improve the accuracy of produced...

Derivation and Guide to the Uncertainty in the Angle Between Two Planes

Jana Barker, Anthony Barker

Coordinate metrologists need to plan their measurements and estimate the resulting uncertainties before data collection in order to achieve needed precisions. We present the mathematical relationship between the calculated angle between two planes, least...

Mobile Metrology Within the Aerospace Industry

Don Burnard

Large-volume, close-tolerance measurement presents unique challenges for aerospace manufacturers. Traditionally, metrology on large assemblies such as fuselages or wings has been performed using jigs, and the parts need to be moved to locations in the...

Case Study of a Fuselage Join Automation

Rob Flynn, Nathan McRae, Spencer Thompson

A large jet fuselage consists of forward, center and aft sections which must be joined together. The join process calls for a rough move to a “stage” position, automated measurements, and calculation of a transformation matrix to yield a move to an...

Investigations of a handheld laser scanner to estimate fracture apertures and roughness of natural rock formations

Christoph Naab ∙ Sina Hale

Demanding requirements, like high resolution and a low uncertainty in the range of micrometer, are even essential in applications concerning natural rock formations. In the field of applied geoscience, these requirements are needed, for instance, to...

Robotic Arm Calibration Using Laser Trackers

Joe Packer

Electroimpact uses laser trackers to compensate large-scale serial link robot arms to achieve a very high degree of positional accuracy using our “Accurate Robot Technology.” 3D laser tracker data is collected from hundreds of uncompensated robot...

Simple Methods for Dynamically Testing Laser Trackers in the Field

David H. Parker

Laser trackers are typically evaluated under the ASME B89.4.19 and ISO 10360-10 standards using artifact standards under static conditions. Due to the requirements of the artifact standards, evaluations are typically beyond the capabilities of most laser...

X-Ray CT Proposed Measurement Study

Andrew Ramsey

World-class manufacturers have many metrology solutions at hand to help them ensure the quality of their parts and finished products. For many decades, the “gold standard” for accuracy have been coordinate measuring machines (CMMs). Increasingly,...

CMSC 2019 PRESENTATION - Uncertainty evaluation of fringe projection based on linear systems theory

Fringe projection (FP) techniques offer fast, noncontact measurements of the surface form of manufactured parts. FP systems detect the intensity of a projected fringe pattern that is reflected from the surface to be measured. Any process that alters the...

CMSC 2019 PRESENTATION - Computational Challenges for Shop-Floor Laser Radar Commissioning

Optical metrology technologies are increasingly used in the manufacture of automobiles for absolute measurements. Laser radar uses a common principle of optical metrology, namely the deflection of a laser beam through an optical system and the evaluation...